6804-2RS Sealed Ball Bearing 20mm x 32mm x 7mm One Bearing 6804-2RS Sealed Ball Bearing is double sealed, radial and deep groove ball bearing, bearing is made of Chrome Steel with chrome steel balls and steel cage, bearing is sealed and self lubricated,the quality is set to EMQ (electric motor quality) to ensure high speed, 6804-2RS is closed with rubber seals to protect the bearing from dust or any possible contamination, 6804-2RS bearings is lubricated with grease.